FunctionPackage: exclToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version

ratiop

Arguments: object

Returns true if the argument is a ratio and returns nil otherwise. Note that an integer (a fixnum or a bignum) is not a ratio but is a rational. Integers and ratios partition rationals.

cl-user(7): (ratiop 1) ;; fixnums are not ratios
nil
cl-user(8): (ratiop 1/2) 
t
cl-user(9): (ratiop 2/1)  ;; Actually the fixnum 2, despite how it
                          ;; is represented
nil
cl-user(10): (ratiop 0.5) ;; floats are not ratios
nil
cl-user(11): (ratiop nil) ;; returns NIL for non-numbers (does not error)
nil
cl-user(12): 

See also fixnump, single-float-p, double-float-p, and rationalp.


Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.
Created 2012.5.30.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version